| Alexander Rudolf Karl von Uexküll | |
| Office1: | Mayor of Reval |
| Term Start1: | April 1878 |
| Term End1: | June 1883 |
| Predecessor1: | Oscar Arthur von Riesemann |
| Birth Place: | Seltso, Saint Petersburg, Russian Empire |
| Death Date: | (aged 62) |
| Death Place: | Reval, Governorate of Estonia, Russian Empire (present-day Tallinn, Estonia) |
| Nationality: | Baltic German |
| Alma Mater: | Imperial University of Dorpat |
Alexander Rudolf Karl Freiherr von Uexküll (–)[1] was a Baltic German politician who was the mayor of Reval (now Estonian: Tallinn) from April 1878 to June 1883. He was a member of the noble von Uexküll family, which had origins in Bremen. Von Uexküll studied in the University of Dorpat. He owned Heimar manor (now Estonian: Haimre). His son was biologist and pioneer of biosemiotics Jakob von Uexküll.[2] He was succeeded by Wilhelm Greiffenhagen.